GB716763A - Television receiver circuit arrangement for the separation of the frame synchronizing pulses from the received mixture of line and frame synchronizing pulses - Google Patents
Television receiver circuit arrangement for the separation of the frame synchronizing pulses from the received mixture of line and frame synchronizing pulsesInfo
- Publication number
- GB716763A GB716763A GB28764/52A GB2876452A GB716763A GB 716763 A GB716763 A GB 716763A GB 28764/52 A GB28764/52 A GB 28764/52A GB 2876452 A GB2876452 A GB 2876452A GB 716763 A GB716763 A GB 716763A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulses
- pulse
- line
- circuit
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/08—Separation of synchronising signals from picture signals
- H04N5/10—Separation of line synchronising signal from frame synchronising signal or vice versa
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Synchronizing For Television (AREA)
Abstract
716,763. Pulse discriminating circuits. STANDARD TELEPHONES & CABLES, Ltd. Nov. 14, 1952 [Nov. 15, 1951], No. 28764/52. Class 40 (6) In a television circuit for obtaining frame synchronizing pulses from signals consisting of frame pulses and line pulses which continue during the frame pulses, the signals are applied to a coincidence circuit directly and through a delay circuit to produce output pulses having a repetition frequency which is a multiple of that of the line pulses and which are applied to a circuit tuned to the multiple frequency. The pulse train b comprising line pulses, equalizing pulses and a slotted frame pulse is applied to the first grid of a valve and through a delay network producing the pulse train c to the second grid of the valve. Anode current passes only when an input occurs simultaneously on both grids so that the output pulse train d is produced during part of the frame pulse period having a repetition frequency four times the line pulse frequency. A circuit S tuned to this frequency is accordingly forced to oscillate at increasing amplitude and when this is sufficient a pulse X is produced in the output of a clipping circuit (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE307146X | 1951-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB716763A true GB716763A (en) | 1954-10-13 |
Family
ID=6121346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28764/52A Expired GB716763A (en) | 1951-11-15 | 1952-11-14 | Television receiver circuit arrangement for the separation of the frame synchronizing pulses from the received mixture of line and frame synchronizing pulses |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2713086A (en) |
| BE (1) | BE515536A (en) |
| CH (1) | CH307146A (en) |
| FR (1) | FR1066593A (en) |
| GB (1) | GB716763A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3256390A (en) * | 1962-09-05 | 1966-06-14 | Diamond Power Speciality | Synchronizing signal generator control circuits |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2416424A (en) * | 1939-03-16 | 1947-02-25 | Hazeltine Research Inc | Synchronizing-signal separator |
| US2546972A (en) * | 1945-03-17 | 1951-04-03 | Int Standard Electric Corp | Television synchronizing system |
| US2566832A (en) * | 1946-12-18 | 1951-09-04 | Rca Corp | Synchronizing circuit |
-
0
- BE BE515536D patent/BE515536A/xx unknown
-
1952
- 1952-10-22 US US316138A patent/US2713086A/en not_active Expired - Lifetime
- 1952-11-13 CH CH307146D patent/CH307146A/en unknown
- 1952-11-14 GB GB28764/52A patent/GB716763A/en not_active Expired
- 1952-11-15 FR FR1066593D patent/FR1066593A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH307146A (en) | 1955-05-15 |
| BE515536A (en) | |
| FR1066593A (en) | 1954-06-08 |
| US2713086A (en) | 1955-07-12 |
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